Low Oil Pressure
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Low Oil Pressure
2000 Exp. - 4.6L - 156,000 mi.
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Problem: Low oil pressure light comes on and oil gauge drops to zero. Read several post and started with having the oil-sending unit checked; it was good. Firestone did this. They charged a $105.00. They said that was as far as they would go. Then I took it to the Ford Dealer. For $88, they told me I needed a new engine by just doing a diagnostic.
They inform me that their mechanic said that gunk was probably throughout the engine and with the mileage on the vehicle it would be less costly to replace the engine. I couldn’t believe this. So a friend and I used engine flush twice and it corrected the problem for a month. It started back today. Does anyone have a suggest on how to proceed without replacing the engine?
Thanks in advance!
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
fficeffice" /><o></o>Problem: Low oil pressure light comes on and oil gauge drops to zero. Read several post and started with having the oil-sending unit checked; it was good. Firestone did this. They charged a $105.00. They said that was as far as they would go. Then I took it to the Ford Dealer. For $88, they told me I needed a new engine by just doing a diagnostic.
They inform me that their mechanic said that gunk was probably throughout the engine and with the mileage on the vehicle it would be less costly to replace the engine. I couldn’t believe this. So a friend and I used engine flush twice and it corrected the problem for a month. It started back today. Does anyone have a suggest on how to proceed without replacing the engine?
Thanks in advance!
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Sound Fine! I do not hear the typical clattering of valves when there is no oil. However, normally when this occurs I would immediately find a place to stop and shut the engine down. This time I continue to drive. It was approx. 1 ½ miles from home. The gauge would cycled through the trip home, may six to eight time. Coming on and going off. Sometimes it seems to be associated with accelerating. Weird!
Post Fiend
Joined: Jun 2003
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I don't recall where the sensor is specifically; however, I can tell you that I was at my dealership a couple weeks back and they were putting a motor in to an Expy. I asked what was wrong and they said motor sludge due to lack of regular oild changes.
So, there was nothing inherently wrong with the motor, but the expense to disassemble and clean was greater than just putting a new unit in.
If it is a sensor problem and you can repair it, you have no problem. If the engine has suffered oil starvation you may just be able to keep it going for a while; if this is ok with you. If the remainder of the truck is in good shape and you can afford it, and are looking forward to many good years, you can go ahead and replace the motor.
So, there was nothing inherently wrong with the motor, but the expense to disassemble and clean was greater than just putting a new unit in.
If it is a sensor problem and you can repair it, you have no problem. If the engine has suffered oil starvation you may just be able to keep it going for a while; if this is ok with you. If the remainder of the truck is in good shape and you can afford it, and are looking forward to many good years, you can go ahead and replace the motor.
Logistics Pro
Joined: Jan 2001
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From: Central NYS
Originally Posted by FTE Herman
I asked what was wrong and they said motor sludge due to lack of regular oild changes.
So, there was nothing inherently wrong with the motor, but the expense to disassemble and clean was greater than just putting a new unit in.
So, there was nothing inherently wrong with the motor, but the expense to disassemble and clean was greater than just putting a new unit in.
For this particular porblem, I'd want to get a hold of a mechanical gauge and put it on there and see just what the oil pressure actually is. If oil pressure is insufficient, the motor is probably already toast.
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Low Oil Pressure
Originally Posted by pdqford
I'd want to get a hold of a mechanical gauge and put it on there and see just what the oil pressure actually is. If oil pressure is insufficient, the motor is probably already toast.
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Logistics Pro
Joined: Jan 2001
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From: Central NYS
Originally Posted by 2mortime
What should the oil pressure read?
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From: Grand Rapids MI
Originally Posted by 2mortime
Thank you all for the great information given!!!!!
I have a 2000 expy 4x4.....the sending unit was a pisser to change. But the cycling you describe is exactly what it was. The sending unit.
Once I had that replaced. no issues.
Good luck.
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